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Audio and Video Talk
Valves / Vacuum Tubes
Pioneer SM83 vintage tube amplifier
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<blockquote data-quote="Mars" data-source="post: 614294" data-attributes="member: 817"><p>Hi All</p><p></p><p>I need some suggestions regarding the pentode screen grid bypass capacitor on the 6AN8 tube. The current value is, like on the schematic, 10uF 150V. See the schematic detail below:</p><p></p><p><img src="https://lh3.googleusercontent.com/-fml9twbiOQA/VgvLPYK6WCI/AAAAAAAAHM0/lrbJJmEfats/s752-Ic42/SM83-Cap.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Usually these bypass capacitors are closer to the coupling caps (0.5uF). Space is a bit cramped around the tube socket, and a 0.47uF would fit much better. Do you think the bass would be diminished if I replace the 10uF with a 0.47uF MKP? :thinking:</p><p></p><p>Thanks in advance.</p></blockquote><p></p>
[QUOTE="Mars, post: 614294, member: 817"] Hi All I need some suggestions regarding the pentode screen grid bypass capacitor on the 6AN8 tube. The current value is, like on the schematic, 10uF 150V. See the schematic detail below: [IMG]https://lh3.googleusercontent.com/-fml9twbiOQA/VgvLPYK6WCI/AAAAAAAAHM0/lrbJJmEfats/s752-Ic42/SM83-Cap.jpg[/IMG] Usually these bypass capacitors are closer to the coupling caps (0.5uF). Space is a bit cramped around the tube socket, and a 0.47uF would fit much better. Do you think the bass would be diminished if I replace the 10uF with a 0.47uF MKP? :thinking: Thanks in advance. [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
Pioneer SM83 vintage tube amplifier
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